Finding the Third Proportional to 4,112,091 and 8,910,621

Step by Step Solution

1. Step 1: Write the proportion equation
   4,112,091 : 8,910,621 = 8,910,621 : x
2. Step 2: Convert to fraction form
   4,112,091/8,910,621 = 8,910,621/x
3. Step 3: Cross multiply
   4,112,091x = 8,910,621 × 8,910,621
4. Step 4: Simplify right side
   4,112,091x = 79,399,166,605,641
5. Step 5: Solve for x
   x = 79,399,166,605,641/4,112,091
6. Step 6: Final answer
   x = 19,308,708.54